Alright, let's work through 83357834 times 83346397 step by step
83357834 × 83346397 = 83346397 × (83357834)
+ 83346397 × 4 yielding 333385588
+ 83346397 × 30 that equals 2500391910
+ 83346397 × 800 that is equal 66677117600
+ 83346397 × 7000 giving us 583424779000
+ 83346397 × 50000 what gives us 4167319850000
+ 83346397 × 300000 producing 25003919100000
+ 83346397 × 3000000 what gives us 250039191000000
+ 83346397 × 80000000 giving us 6667711760000000

= 6947575125624098
